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本试验通过田间微区~(15)N 示踪试验研究了北京春稻的氮素效应,进一步探讨了不同的追氮时期和追氮量对水稻植株氮素营养的吸收利用和分配的影响。
In this experiment, we studied the nitrogen effect of spring rice in Beijing by field micro-area ~ (15) N tracing experiment, and further discussed the effects of different times of nitrogen recovery and nitrogen uptake on the absorption, utilization and distribution of nitrogen nutrition of rice plants.